[d3d9] Reduce size of state blocks #3239
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Fixes #2703
Reduces the size of an empty state block from ~190 KB to 2.2 KB. The actual state is down to 352 bytes and 1816 bytes is the capture bit sets (remember, we need 8192 bits for just the vs float consts). I also changed it to only allocate the hardware vertex constant set if software vertex processing isn't enabled on the device.
It's pretty ugly but it works and we avoided having to completely rewrite state blocks.